Home / 20,068.90-30,103.35-9,681.70

Finding the Fourth Proportional to 20,068.90, 30,103.35 and 9,681.70

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Solution

The fourth proportional to 20,068.90, 30,103.35 and 9,681.70 is: 14,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.90 : 30,103.35 = 9,681.70 : x
  2. Step 2: Convert to fraction form
    20,068.90/30,103.35 = 9,681.70/x
  3. Step 3: Cross multiply
    20,068.90x = 30,103.35 × 9,681.70
  4. Step 4: Simplify right side
    20,068.90x = 291,451,603.70
  5. Step 5: Solve for x
    x = 291,451,603.70/20,068.90
  6. Step 6: Final answer
    x = 14,522.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.